Mass Spectrometer Chamber Pressure Control Using Real-Time Spectra
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Solution Overview
Problem
Conventional mass spectrometer operations rely on manual and inefficient methods to regulate internal chamber pressure, which is time-consuming and affects the quality of mass spectra.
Innovation Solution
A method and system for self-regulating control of internal chamber pressure in mass spectrometers, involving a pressure regulation test, characteristic factor identification, and automatic pressure adjustment based on real-time mass spectrum analysis to achieve optimal pressure conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual pressure regulation methods are used, then the mass spectrometer can operate with simple control, but the regulation process is time-consuming and inefficient
Solution Approach 1:
The system performs self-regulation of chamber pressure by automatically analyzing real-time mass spectra, identifying characteristic factors, matching them with test data sets, and adjusting pressure without operator intervention. The mass spectrometer serves itself to maintain optimal pressure conditions.
Solution Approach 2:
The system continuously monitors mass spectrum quality, compares it against predetermined standards, and uses this feedback to automatically adjust chamber pressure. The feedback loop includes real-time spectrum acquisition, characteristic factor extraction, matching with test data, and pressure adjustment based on match results.
2Productivity
If automatic pressure regulation is implemented, then regulation efficiency is improved, but the system complexity increases
Solution Approach 1:
The mass spectrometer system performs multiple functions: it analyzes samples, monitors its own chamber pressure conditions, identifies characteristic spectral factors, matches data with test sets, and executes pressure adjustments. This multi-functionality reduces the need for separate dedicated pressure control equipment.
Solution Approach 2:
The system uses characteristic factors of mass spectra as intermediaries to bridge the gap between quality monitoring and pressure control. These characteristic factors serve as mediators that translate spectral quality information into actionable pressure adjustment decisions through matching with test data sets.
3Reliability
If manual pressure regulation is used, then the system is easier to operate, but the quality and consistency of mass spectra deteriorate
Solution Approach 1:
The system continuously monitors mass spectrum quality through characteristic factor analysis and uses this feedback to automatically adjust chamber pressure, ensuring consistent optimal conditions. The feedback mechanism compares real-time spectra against test data sets with predetermined match thresholds to maintain quality.
Solution Approach 2:
The patent replaces manual mechanical pressure adjustment with an automated electronic control system that uses computational matching of spectral characteristics. This substitution eliminates operator variability and maintains consistent pressure conditions for reliable mass spectrum quality.
Data Source
AI summary
A method and a system for self-regulating control of an internal chamber pressure of a mass spectrometer are provided. The method specifically includes: associating a first test mass spectrum set, a sample composition, a compositional ratio, and a chamber pressure regulation parameter to obtain a test data set; performing characteristic factor identification on a first real-time mass spectrum generated in real time to obtain a plurality of first real-time characteristic factors when a mass spectrometer is used for sample detection; matching the first real-time characteristic factors with different test data sets; and regulating an internal chamber pressure of the mass spectrometer according to the chamber pressure regulation parameter in the test data set when there exists a test data set with a matching degree greater than or equal to a preset value.